The research was carried out during 2009 – 2010 in Al – Hasaka – Amoda – to study the effect of cattle manure at the rate of 30 ton/h1, and four organic green fertilizers (Lentil, Vetch, Faba bean and Barely) on plant area and earliness properties of
cotton crop compared with chemical fertilizer 400 kg/h1 urea, 83 kg/h1 P2O5 and 25 kg/h1 K2O.The study showed that the cattle manure significantly increased (plant area, lower first fruiting branch, earliness of flowering and boll maturity) when compared with all studied fertilizers, the increase reached (190. 92 Cm2, 0.30 pod, 1.50 day and 0.90 day) respectively. When compared with chemical fertilizer, the legume green fertilizers (Lentil, Vetch and Faba bean) significantly increased the plant area when compared with the control. The legume green fertilizer (Lentil) significantly increased the earliness of flowering (2.73) day and boll maturity (2.21) day when compared with the green fertilizer (Barely). The chemical fertilizer did not significantly affect the earliness of flowering and boll maturity when compared with the legume green fertilizer (Lentil) during the two seasons.
This study was conducted at Research Altyba station where belongs
GCSAR during 2007-2008. by using nine parental lines and their 36 F1 hybrids,
were obtained from 9x9 half diallel design. The study included stem, earliness
and yield component char
acters, in order to estimate of hetrerosis compare to
the mid parents, the better parent and to the standard hybrid, and determine
the superior hybrids advantage to invest in agricultural production and benefit
from as well as in breeding program development yield of squash.
Heterosis over mid parent was evident in all yield components, The hybrid
(IL3XIL6) exhibited (16.89 ، 57.57%) respectively for the ratio pistilate flower
% and fruit number per plant, negative heterobeltiosis (-13.71%) was recorded
by the hybrid (IL3XIL8)for the number of nodes to first flower, While the
hybrid (IL3XIL5) showed maximum positive and significant heterobeltiosis
(13.06 %) for ratio pistilate flower%, and the hybrid (IL3XIL6) for fruit
number per plant (59.47 %) Whereas the results showed that, four hybrids had
positive and high significant standard heterosis for plant yield, the hybrid
(IL6xIL7) and (IL3XIL6) had maximum value (32.38, 28.68% ) respectively
Genotypic and phenotypic coefficient of variance, broad and narrow-sense
heritability, expected genetic advance and relative genetic advance of earliness
characteristics in six pea hybrids produced by 4 x 4 half-diallel crossing scheme
were estima
ted. The results, in general, showed low values of phenotypic
coefficient of variance (in all crosses) of days to beginning of flowering and days
to marketable maturity; which may indicates to a low effect of environmental
variation on the expression of both these characters, but were medium to high
for number of low internodes and internode's length. Estimates of heritability
in broad sense were medium to high for days to beginning of flowering (0.42 –
0.90) and days to marketable maturity (0.42 – 0.91), and biased estimates of
narrow-sense heritability have been recorded in most of the crosses and in
majority of the parameters studied; so we can’t adopt them as reliable data.
The highest estimates of relative expected genetic advance of number for low
internodes have been observed in Mutant-3 x Dasargelo (25.95%) and
Dasargelo x Nassra (25.11 %) and for internode's length in Dasargelo x Oterlo
(37.31 %). The selection procedure can be effectively made for achievement
further improvement of internode's length in early segregating generations of
Dasargelo x Oterlo hybrid; because it has high values of genotypic coefficient of
variance, broad-sense heritability and relative expected genetic advance.
